[R] loop in optim
n.bowora at gmail.com
Thu Jul 7 05:39:19 CEST 2011
I have one last theoretical question, I did not adjust my code prior so that
it maximise the likehood function. I googled that to make optim maximise you
multiply fn by -1.
In my code, would that be the same as saying "-sum" on the "sum" part of my
code (see below)?
llik = function(x)
al_j=x; au_j=x; sigma_j=x; b_j=x
ifelse(a$R_j< 0, log(1 / ( sqrt(2*pi) * sigma_j) )-
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